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Malone, L.*; 松田 達磨; Antunes, A.*; Knebel, G.*; Taufour, V.*; 青木 大*; Behnia, K.*; Proust, C.*; Flouquet, J.*
Physical Review B, 83(24), p.245117_1 - 245117_5, 2011/06
被引用回数:16 パーセンタイル:55.72(Materials Science, Multidisciplinary)Measurements of the thermoelectric coefficients of URuSi in a high magnetic field could imply topological Fermi surface changes even deep inside the hidden order state. A change is observed in the thermopower as a function of the field applied parallel to the easy axis of magnetization, which could signify a change in the Fermi surface characteristics. The maximum of the thermopower coincides with previously measured anomalies in resistivity at = 23T. We analyze our results in terms of a Lifshitz transition in URuSi originating from the hidden order Pauli depairing on a given subband.